When does purple passionflower bloom in Florida?

Most often in July. Across 925 dated, research-grade observations of Passiflora incarnata in Florida, the flowering season runs roughly May to August.

Peak July In flower 925 Examined 1,511 State Florida

Flowering 925 in flower of 1,511 examined

13%

14%

65%

79%

84%

86%

80%

63%

18%

Proportion of examined Passiflora incarnata in Florida in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	4	32	13%	5% to 28%
Feb	0	28	0%	0% to 12%
Mar	17	122	14%	9% to 21%
Apr	257	396	65%	60% to 69%
May	350	444	79%	75% to 82%
Jun	90	107	84%	76% to 90%
Jul	79	92	86%	77% to 92%
Aug	75	94	80%	71% to 87%
Sep	40	64	63%	50% to 73%
Oct	10	57	18%	10% to 29%
Nov	3	44	7%	2% to 18%
Dec	0	31	0%	0% to 11%

Peak flowering in Jul. Each bar is the share of Passiflora incarnata in Florida observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 925 of 1,511 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.wt38fd.

What this is, and what it is not

This is a record of when people in Florida found Passiflora incarnata in flower, not a forecast. It is computed only from observations made in Florida, so it is not the species’ global average dragged onto a map: the same plant flowers on different dates in different places, and that is the entire point of the page.

It will not tell you what your particular plant will do this year. Bloom time moves with the season, with altitude, and with the weather, and a warm February pulls everything forward. We publish the distribution and the sample size, and we refuse to draw a month that too few people examined.

The plant

Passiflora incarnata

purple passionflower

Sourcesevery claim on this page

GBIF (iNaturalist Research-grade Observations). Dated flowering annotations in Florida. Every record achieved iNaturalist quality grade Research, which is applied upstream at export. 10.15468/dl.wt38fd. Retrieved 2026-07-14.
World Flora Online Plant List. The accepted name. CC0. Retrieved 2026-07-12.